[Statutory Authority: RCW 77.04.012, 77.04.013, 77.04.020, 77.04.055, and 77.12.047. WSR 17-05-112 (Order 17-04), recodified as § 220-350-030, filed 2/15/17, effective 3/18/17. Statutory Authority: RCW 77.12.047. WSR 02-08-048 (Order 02-53), § 220-16-028, filed 3/29/02, effective 5/1/02. Statutory Authority: RCW 75.08.080. WSR 83-24-024 (Order 83-200), § 220-16-028, filed 11/30/83, effective 1/1/84; WSR 79-03-014 (Order 79-11), § 220-16-028, filed 2/15/79; Order 1105, § 220-16-028, filed 12/28/73; Order 810, § 220-16-028, filed 4/17/69. Formerly WAC 220-16-010 (part).]